A computer randomly selected 80 university students 200 times. The percentages of females in each sample are plotted below. What do these results suggest, if it is known that exactly 50% of the student body are female?

In this problem it decreased 20%

The median segment divides the triangle into 2 isosceles triangles and everything else is trivial.|ad|=|bc|2=|bd|soδadb  is isosceles with∠dab=∠dbasimilarlyδadc  is isosceles with  ∠dac=∠dca∠cab=∠cad+∠bad=∠acb+∠abctherefore∠cab  is a right angleandbc  is the hypotenuse of a right-angled triangle.hope this